Food fortification analysis

As a special service, the German authority has published reviews on residue analysis concerning new a.i. contained in plant protection since 1996, including selected physical-chemical data. Recoveries obtained in fortification experiments and LOQs for analytical methods for determination in crops, food of plant and animal origin. 

Matrix samples, where appropriate, are processed by grinding with dry-ice either in a food processor or a Hobart-Cutter mixer and stored in zipper-locking storage bags, allowing the dry-ice to sublime. All processed samples are then stored frozen (<0 °C) until used for fortification and analysis. 

The infrared technique has been described in numerous publications and recent reviews were published by Davies and Giangiacomo (2000), Ismail et al. (1997) and Wetzel (1998). Very few applications have been described for analysis of additives in food products. One interesting application is for controlling vitamin concentrations in vitamin premixes used for fortification of food products by attenuated total reflectance (ATR) accessory with Fourier transform infrared (FTIR) (Wojciechowski et al., 1998). Four vitamins were analysed - Bi (thiamin), B2 (riboflavin), B6 (vitamin B6 compounds) and Niacin (nicotinic acid) - in about 10 minutes. The partial least squares technique was used for calibration of the equipment. The precision of measurements was in the range 4-8%, similar to those obtained for the four vitamins by the reference HPLC method. 

Uses Alkali mfg. of lime neutralizer paper opacifier putty tooth powds. whitewash Portland cement filler, extender in paints, rubber, plastics, caulks, cements, ceramics, coatings insecticides in chemical analysis precipitant in waste treatment filler pigment coagulant, flocculant in potable water treatment foods (nutrient, dough conditioner, yeast food, colorant, alkali, calcium fortification, buffer, anticaking agent, stabilizer) pharmaceuticals (alkali, neutralizer, colorant, opacifier, tablet/capsule diluent, antacid, antidiarrheal medicine food-contact applies. 

Chandra-Hioe, M. V, BucknaU, M. R, and Arcot, J. 2013. Folic acid-fortified flour Optimised and fast sample preparation coupled with a vahdated high-speed mass spectrometry analysis suitable for a fortification monitoring program. Food Anal. Methods. DOI 10.1007/S12161-012-9559-3. 

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